Vulnerability-Lookup

CVE-2023-23916 (GCVE-0-2023-23916)

Vulnerability from cvelistv5 – Published: 2023-02-23 00:00 – Updated: 2025-03-12 18:25

Summary

An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-12 18:24 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling (CWE-770)
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

hackerone mitre root

References

6 references

URL	Tags
https://hackerone.com/reports/1826048
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2023/dsa-5365	vendor-advisory
https://security.netapp.com/advisory/ntap-2023030…
https://security.gentoo.org/glsa/202310-12	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	https://github.com/curl/curl	Affected: Fixed in 7.88.0

Show details on NVD website

JSON

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:40:14+00:00",
      "cve": "CVE-2023-23916",
      "id": "CVE-2023-23916",
      "initial_release_date": "2023-02-15T00:00:00+00:00",
      "product_status:fixed": "331",
      "product_status:known_affected": "8",
      "product_status:known_not_affected": "117",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "curl: HTTP multi-header compression denial of service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-23916.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:14:16Z",
      "cve": "CVE-2023-23916",
      "id": "CVE-2023-23916",
      "initial_release_date": "2023-02-16T03:02:39Z",
      "product_status:known_affected": "330",
      "product_status:known_not_affected": "11",
      "product_status:recommended": "322",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-23916",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-23916.json",
      "version": "71"
    },
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"shortName\": \"hackerone\", \"dateUpdated\": \"2023-10-11T10:06:40.617Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An allocation of resources without limits or throttling vulnerability exists in curl \u003cv7.88.0 based on the \\\"chained\\\" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable \\\"links\\\" in this \\\"decompression chain\\\" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a \\\"malloc bomb\\\", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.\"}], \"affected\": [{\"vendor\": \"n/a\", \"product\": \"https://github.com/curl/curl\", \"versions\": [{\"version\": \"Fixed in 7.88.0\", \"status\": \"affected\"}]}], \"references\": [{\"url\": \"https://hackerone.com/reports/1826048\"}, {\"name\": \"[debian-lts-announce] 20230224 [SECURITY] [DLA 3341-1] curl security update\", \"tags\": [\"mailing-list\"], \"url\": \"https://lists.debian.org/debian-lts-announce/2023/02/msg00035.html\"}, {\"name\": \"FEDORA-2023-94df30cbec\", \"tags\": [\"vendor-advisory\"], \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/\"}, {\"name\": \"DSA-5365\", \"tags\": [\"vendor-advisory\"], \"url\": \"https://www.debian.org/security/2023/dsa-5365\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230309-0006/\"}, {\"name\": \"GLSA-202310-12\", \"tags\": [\"vendor-advisory\"], \"url\": \"https://security.gentoo.org/glsa/202310-12\"}], \"problemTypes\": [{\"descriptions\": [{\"type\": \"CWE\", \"lang\": \"en\", \"description\": \"Allocation of Resources Without Limits or Throttling (CWE-770)\", \"cweId\": \"CWE-770\"}]}]}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T10:42:26.847Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://hackerone.com/reports/1826048\", \"tags\": [\"x_transferred\"]}, {\"name\": \"[debian-lts-announce] 20230224 [SECURITY] [DLA 3341-1] curl security update\", \"tags\": [\"mailing-list\", \"x_transferred\"], \"url\": \"https://lists.debian.org/debian-lts-announce/2023/02/msg00035.html\"}, {\"name\": \"FEDORA-2023-94df30cbec\", \"tags\": [\"vendor-advisory\", \"x_transferred\"], \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/\"}, {\"name\": \"DSA-5365\", \"tags\": [\"vendor-advisory\", \"x_transferred\"], \"url\": \"https://www.debian.org/security/2023/dsa-5365\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230309-0006/\", \"tags\": [\"x_transferred\"]}, {\"name\": \"GLSA-202310-12\", \"tags\": [\"vendor-advisory\", \"x_transferred\"], \"url\": \"https://security.gentoo.org/glsa/202310-12\"}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-23916\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-03-12T18:24:35.695221Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770 Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-03-12T18:25:15.856Z\"}}]}",
      "cveMetadata": "{\"state\": \"PUBLISHED\", \"cveId\": \"CVE-2023-23916\", \"assignerOrgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"assignerShortName\": \"hackerone\", \"dateUpdated\": \"2025-03-12T18:25:23.845Z\", \"dateReserved\": \"2023-01-19T00:00:00.000Z\", \"datePublished\": \"2023-02-23T00:00:00.000Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

SUSE-SU-2023:1711-1

Vulnerability from csaf_suse - Published: 2023-03-31 11:33 - Updated: 2023-03-31 11:33

Summary

Security update for curl

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 16 products

Open the full advisory

SUSE-SU-2023:2226-1

Vulnerability from csaf_suse - Published: 2023-05-17 07:56 - Updated: 2023-05-17 07:56

Summary

Security update for curl

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 34 products

Open the full advisory

SUSE-SU-2023:2228-1

Vulnerability from csaf_suse - Published: 2023-05-17 07:59 - Updated: 2023-05-17 07:59

Summary

Security update for curl

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 26 products

Open the full advisory

ubuntu-cve-2023-23916

Vulnerability from osv_ubuntu

Published

2023-02-15 00:00

Modified

2026-04-22 07:45

Summary

Details

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-23916	REPORT
	https://curl.se/docs/CVE-2023-23916.html	REPORT
	https://ubuntu.com/security/notices/USN-5891-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2023-23916	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "curl",
            "binary_version": "7.58.0-2ubuntu3.23"
          },
          {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.58.0-2ubuntu3.23"
          },
          {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.58.0-2ubuntu3.23"
          },
          {
            "binary_name": "libcurl4",
            "binary_version": "7.58.0-2ubuntu3.23"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@7.58.0-2ubuntu3.23?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.58.0-2ubuntu3.23"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.55.1-1ubuntu2",
        "7.55.1-1ubuntu2.1",
        "7.57.0-1ubuntu1",
        "7.58.0-2ubuntu1",
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        "7.58.0-2ubuntu3",
        "7.58.0-2ubuntu3.1",
        "7.58.0-2ubuntu3.2",
        "7.58.0-2ubuntu3.3",
        "7.58.0-2ubuntu3.5",
        "7.58.0-2ubuntu3.6",
        "7.58.0-2ubuntu3.7",
        "7.58.0-2ubuntu3.8",
        "7.58.0-2ubuntu3.9",
        "7.58.0-2ubuntu3.10",
        "7.58.0-2ubuntu3.12",
        "7.58.0-2ubuntu3.13",
        "7.58.0-2ubuntu3.14",
        "7.58.0-2ubuntu3.15",
        "7.58.0-2ubuntu3.16",
        "7.58.0-2ubuntu3.17",
        "7.58.0-2ubuntu3.18",
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    },
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          },
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          },
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            "binary_name": "libcurl4",
            "binary_version": "7.68.0-1ubuntu2.16"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
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      },
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        "7.65.3-1ubuntu3",
        "7.65.3-1ubuntu4",
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        "7.68.0-1ubuntu2.6",
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        "7.68.0-1ubuntu2.13",
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
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            "binary_name": "libcurl3-nss",
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            "binary_name": "libcurl4",
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      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
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      },
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              "introduced": "0"
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        }
      ],
      "versions": [
        "7.74.0-1.3ubuntu2",
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        "7.81.0-1ubuntu1.2",
        "7.81.0-1ubuntu1.3",
        "7.81.0-1ubuntu1.4",
        "7.81.0-1ubuntu1.6",
        "7.81.0-1ubuntu1.7"
      ]
    }
  ],
  "aliases": [],
  "details": "An allocation of resources without limits or throttling vulnerability exists in curl \u003cv7.88.0 based on the \"chained\" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable \"links\" in this \"decompression chain\" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a \"malloc bomb\", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.",
  "id": "UBUNTU-CVE-2023-23916",
  "modified": "2026-04-22T07:45:15Z",
  "published": "2023-02-15T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-23916"
    },
    {
      "type": "REPORT",
      "url": "https://curl.se/docs/CVE-2023-23916.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5891-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-23916"
    }
  ],
  "related": [
    "USN-5891-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-23916"
  ]
}

WID-SEC-W-2023-0405

Vulnerability from csaf_certbund - Published: 2023-02-15 23:00 - Updated: 2025-11-06 23:00

Summary

cURL: Mehrere Schwachstellen

Severity

Mittel

Scope

3 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

Known affected: 27 products

Open the full advisory

WID-SEC-W-2023-1021

Vulnerability from csaf_certbund - Published: 2023-04-18 22:00 - Updated: 2023-06-29 22:00

Summary

Oracle Communications: Mehrere Schwachstellen

Severity

Hoch

Scope

38 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

In Oracle Communications existieren mehrere Schwachstellen. Durch Ausnutzung dieser Schwachstellen kann ein entfernter, anonymer oder authentisierter Angreifer die Vertraulichkeit, Integrität und Verfügbarkeit gefährden. Für die Ausnutzung einiger dieser Schwachstellen ist keine Benutzerinteraktion notwendig. Oracle veröffentlicht keine weiteren Details zu diesen Schwachstellen (außer der Information in der Risiko Matrix im Oracle Advisory zum Critical Patch Update, siehe Link unten in diesem Advisory). Aufgrund der knappen Informationslage erfolgt die Bewertung der Schadenshöhe ausschließlich auf Basis der CVSS Impact Matrix. Der Maximalwert für diese Produkte ist "HIGH" für "Confidentiality", "Integrity" und "Availability" über alle Schwachstellen aggregiert und bewirkt damit eine Bewertung mit dem Wert "HOCH" für die Schadenshöhe.

Known affected: 18 products Last affected: 2 products

Open the full advisory

WID-SEC-W-2023-1350

Vulnerability from csaf_certbund - Published: 2023-06-01 22:00 - Updated: 2026-01-25 23:00

Summary

Splunk Splunk Enterprise: Mehrere Schwachstellen in Komponenten von Drittanbietern

Severity

Mittel

Scope

129 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

Known affected: 10 products

Open the full advisory

WID-SEC-W-2023-1614

Vulnerability from csaf_certbund - Published: 2023-06-29 22:00 - Updated: 2023-10-25 22:00

Summary

Tenable Security Nessus Network Monitor: Mehrere Schwachstellen

Severity

Hoch

Scope

173 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

In Tenable Security Nessus Network Monitor existieren mehrere Schwachstellen. Die Fehler bestehen unter anderem in Komponenten von Drittanbietern wie c-ares, curl, libbzip2, libpcre, libxml2, sqlite und OpenSSL. Ein Angreifer kann diese Schwachstellen ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen und Daten zu manipulieren. Die erfolgreiche Ausnutzung einiger dieser Schwachstellen erfordert eine Benutzerinteraktion oder erhöhte Rechte.

Open the full advisory

WID-SEC-W-2023-2101

Vulnerability from csaf_certbund - Published: 2023-08-20 22:00 - Updated: 2023-08-20 22:00

Summary

genua genucenter: Mehrere Schwachstellen

Severity

Hoch

Scope

18 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

Es existieren mehrere Schwachstellen in genua genucenter und in davon genutzten Komponenten von Drittanbietern (curl, libxml, sudo und Ruby). Durch manipulierte Anfragen an das System kann ein Angreifer dadurch Informationen offenlegen, Dateien manipulieren, Cross-Site Scripting Angriffe durchführen oder weitere nicht spezifizierte Auswirkungen erzielen.

Open the full advisory

WID-SEC-W-2023-2229

Vulnerability from csaf_certbund - Published: 2023-08-30 22:00 - Updated: 2025-11-18 23:00

Summary

Splunk Splunk Enterprise: Mehrere Schwachstellen

Severity

Hoch

Scope

160 vulnerabilities in this advisory, including CVE-2023-23916.

CVE-2023-23916

Known affected: 13 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2023-23916 (GCVE-0-2023-23916)

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour